Pipe sleeve



April 8,1930.l H. PAL- rRwrrz PI PE sLEEvE Filed Sepf. 6, 1927 :EUR: E

i far-as the finishe se.A

STATES' PATENT orifice l:maar

rnrmnowrrz, .or New zonk, N. Y., Assieivon ro amm srnni. rnonuc'rs COMPANY, INC., l' YORK, N. Y.,.A CORPORATIONOF NEW YORK PDE SLEEVE Lpplieationnled September 6, 192?. Serial No. $11,588. l

My invention relates to pipe sleeves, of'the ln'ndlemployed in A connecting up successive pipe sections, for use in building concrete piles, or'in thel construction of. supporting posts, or the like; such, for instance `as are commonl used in the preparation of foundations for arge buildin ,bridgesand the like.

, i vAsis well known 1n this art, very long piles are made by driving a pipe section into ground, then connecting to its upper end er pi e section and driving that section down in e groun vso as to push" the first i mentioned section below it, then connectingv up a third pipe section to extend upwardly from-.the top of the second pipe section and 1 thus to form,'sectionby section, a continudeep into the ground, as pile is to extend. This r done, an dirt o r water within the pipe is next remove therefrom by discharging into the Vpipe a suitable quantity of air under high pressure.` Finally, the with concrete material in plastic form, which thereaftersets and hardens, the concrete pile being thereby completed. In this manner, concrete piles of any reasonable length may -be made. In practice these concrete piles are extended down to bed rock, or at least toa suicient depth to give them a firm supportat'the bottom. They are tested in the manner well known in this art, to ascertain when their have a s'uiliciently firm footing,A used for connecting" any given vous pipe 'extending pipe section ose being to give the various parts such orm and arrangement that the mshed pipe, containing m improved pipe sleeve as an essential part t ereof, is ren ered watertight, strong, rm, durable and of increased eiliciency as compared with pipes of the prior art, used for similar purposes.

The pipe formed by aid of my improved pipe sleeve may be forced down byeither jacking or driving. Heretofore in this art it has been dicult to obtain a pipe sleeve which was well ada ted for the formation of a pipe to be force into the ground by the alternative of either iackinguor driving, as the needs of a particular case mightrequire'.

linished pipe is filled invention relates to the pipe sleeve with the next successive pipe sect1on.my pur ure 4, and showing the bea My improved pipe sleeve is so constructed and arranged as to present a number of dis- 'tinct structural' features possessing advantages, all as hereinafter described and pointed out in the appended claim.

Reference is made to the accompanying drawing forming a part of this specification, and in which like reference characters indicate like parts throughout the several figures.`

Figure 1 .is a fragmentary vertical section 60 through one form of my Aimproved pipe sleeve,

showing it as used to connect together two consecutive pipe sections, but in which'the connection is not quite finished I Figure 2 is a fragmentary vertical section showing the saine pipe sleeve as Figure 1, but as it appears in t e finished pipe.

Figure 3 is a-fragmentary vertical section of another form of my improved pipe sleeve as used'to connect two pipe sections, but in which the connection is as yet incomplete.

Figure 4 isa fra entary vertical section showing the same s eeve as Figure .3, but as it appears in the finished pipe.

Figure 5 is a smallfra entary section, showing in detail a bead orming a part of the form of the pipe sleeve illustrated 1n Figure 1, as this bead ap ars shortly before the connection between t e-two consecutive pipe sections is completed. 1

re 6 is a small fragmentary section, indicating the form and construction of the bead after the connection is completed.

Figure 7 is a small fragmentary section,- correspondin to the left middle portion of Figure 3, an showing the beadused in that form of my device, as such bead a pears just before the connection is completed.)

Figure 8 is a fragmentary section corresponding to the left middle portion of Figas it appears after vthe completion of the connection between the pipe sections. y Fi re'9 is a perspective, showing the form of ipe slceve'indicated in `Figure 1, as an article of manufacture.

A pair of successive pipe sections are shown at 10,11.

One form of my improved pipe sleeve a pears at 12. It consists of a substantial y 100.

1 0 y theupperendoffthe'pipesection 11, the ini `vvardly 'extending'fedge*portion 17 lor'the cylindrical member, made of sheet steel and provided at its ends with V-notches 13, 14, as shown. There are three notches 13 at the upperfedgeof the sleeve, and three notches 14 atthelower edgethereof, so ythat each notch 14 is midway between two notches 13. In other words, the notches 14 are staggered relatively to the notches 13. i'

Thesleeve 12 is further provided with a `bead 15, swelled outwardly and completely encircling the sleeve, after the mannerof an equator. This bead is integral `with thebody portion of the sleeve, and-so ,formed andarranged as to extend out between the two pipe sections 11, 12, preferably a little past the .peripheral surfaces thereof, as4 indicated in l LVA, i :considerable extent, vde

v j thickness of the walls" o the pipe sections,

F i'ofurel.

.edge'with anfedge portion16 andat its lvyer endwith an edge portion 17, these edge pogtions being curvedv or bent slightly ininto'the pipe sections. f.

rThe thickness of the sleeve may vary to a 'ending upon the and also to some extent upon practical condi l tions ofoperation. I find, for instance, that vWhere thelmaterialof the pipe section is from three-sights of an inch to half an vinch thick, the 'wall of the sleeve may be about threesixteenths .of an inch thick. However, it

works-wellif somewhat thicker or thinner than asjustindicated.

Referring to'Figure 1, assume that the pipe f I section; .l1-has been driven "into the ground,

.withaits topv portion protruding upwardly therefrom. The sleeve 12 is nowfittedinto sleeve facilitatinggthispurpose. T 'Ne'x't theproperlybraced and guided,soasy to fitover erated byhand. By a few strokes thei'sleeve 12 is moved downwardly and the parts assume "bead, andthe bead still being open or unconi the're'lative positions indicated'for them in Figurelythat 'is, with the beadv extending outwardly between the adjacent end portions of the 'pipe sections, but these end Yportions are notY yet in direct engagementv with `the pressed, as may be understood by contrasting Figure 1 with Figure 2.

Next, a power hammer'is applied to the pipe section 10, in a manner whichgneed not here be explained in 4-detail, because;v well known inthis art. Under the action of the power hammer the pipe section 10 is forced I ard,",as shown.r` Q'Ihus the sleeve is at its topp an .bottom. lprovided with bull nose ends'. Thisis to facilitate the entrance of the ends shown in Figure 8, at 29.

and pipe sections', a peculiar shearing stress The result is that the top and bottom portions of the sleeve are subjected to a torque, so that the inwardl bent edge portions 16 and 17, shown in igure 1, are forced outwardly, and caused to ress hard against the adjacent internal sur aces of the pipe sections, and are renderedtruly cylindrical, as shown at 2O and 21, in Figure 2.

This completes the connection between the pipe sections 10 and 11, and the result is a finished pi e shown in Figure 2.

In this Enished pipe the slots 13 and 14 of the pipe sleeveare'found to be splayed or widened out, as indicated inFigure 2.- In fact theappearance of the sleeve within the .finished pipe, andI now forming a part thereof, is much the same as 4if a direct pressure had been lexerted radiallyoutward against the upper. and lower portions of the sleeve, 'causing them to vbindvery tightly against thead-jacent inner surfaces of 'the pipe seotions, the sleeve as a whole appearing as indicated at 19, in Figure 2.

In' the formof pipe sleeve shown in Figure`3 I make use. of two short lcylindrical portions 23, 24, provided with outwardly extending ianges 25,2601?4 annular form, these iianges'being welded integrally upon op ositesidesof a ring-27 all offthesel Karts eifi'ngof lmeta'l, preferably steel. T e sleeve l-thusmade upis provided at its top and botpipe section 10 is lowered from above, being torn4 with V-,notches- 1 3. and 14,ias above ydescribed with reference to thersleeve shown in Figure '1.

kExcept as otherwise above stated, the structure v and action of the pipe sleeve shown in..Figure 3 are like that of the other pipe sleeve. When the connect-ion is completed,

as shown in lFigure 4, the sleeve is essentially a part of the pipe, and ap ears as shown at 23, theupper and lower e ing truly cylindrical, an pressing hard against the adjacent internal surfaces of the pipe.

While the connection remains incom lete,

l:as indicated in Fi ure 3, the outer perip eral edge port-ion of t e steel ring 27 presents a bead 28` of annular'form, and when the connection is .completed this bead appears as 'I lfind that each of my two pipe sleeves S31 and 32 beabove described is very adaptable, and that the finished pipe in which it is incorporated is thoroughly water tight, strong and reliable, easily braced, and true in alinement, sectionby section;

lIn some kinds of foundation Work, and especially in operating beneath heavy buildings or below superstructures having enormous weight, it is desirable to force the pipe downward by means of a ack. A pipe made up with either form of my sleeve may* be forced into the ground by either drivingor jacking, and will standwell under any normal strain to which it may thus be subjected.

I do not limit myself to the recise mechanism shown, as variations may e made there- 15 in without departing from my invention, the

scope of which is commensurate with my claim. i Having thus described my invention, what l claim as new and desire to secure by Letters 2o Patent is as follows The combination of a pair of pipe sections,

apipe sleeve provided with an equatorial portion extendingr between and abutted by the ends of said pipe sections, said equatorial portion being compressed between the ends of said pipe sections when said pipe sections are subjected to pressure endwise off the length thereof, said pipe sleeve being further provided with portions iitting into adjacent ends of said pipe sections, said last mentioned portions of the pipe sleeve being provided with notches and forcibly urged outwardlyl against the interior walls of the pipe sections by means of the endwise pressure exerted by said pipe sections when assembled upon the outside 'surface of said ipe sleeve at the equatorial portion thereoii Signed at New York, in the county of New York and State of New York, this 3d day oi 4o September, '1927.

HARRY P LTRWTZ, 

